Home / 72,430,807,846.79-108,646,186,198.68-19,370,461,920.50

Finding the Fourth Proportional to 72,430,807,846.79, 108,646,186,198.68 and 19,370,461,920.50

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Solution

The fourth proportional to 72,430,807,846.79, 108,646,186,198.68 and 19,370,461,920.50 is: 29,055,686,042.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,430,807,846.79 : 108,646,186,198.68 = 19,370,461,920.50 : x
  2. Step 2: Convert to fraction form
    72,430,807,846.79/108,646,186,198.68 = 19,370,461,920.50/x
  3. Step 3: Cross multiply
    72,430,807,846.79x = 108,646,186,198.68 × 19,370,461,920.50
  4. Step 4: Simplify right side
    72,430,807,846.79x = 2,104,526,812,568,540,151,808
  5. Step 5: Solve for x
    x = 2,104,526,812,568,540,151,808/72,430,807,846.79
  6. Step 6: Final answer
    x = 29,055,686,042.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.